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1.
研究涤纶/棉混纺织物抗皱、抗起毛起球功能性整理的优化工艺,通过测定经过整理的涤纶/棉织物的抗起毛气球性、抗皱性和甲醛含量,得到最佳的整理工艺。  相似文献   

2.
研究了自制抗起毛起球整理剂A对中空涤纶针织物抗起毛起球的整理工艺。分析表明,整理剂用量、整理液pH值、浴比、浸渍温度对织物抗起毛起球效果的影响显著,而浸渍时间和烘干温度的影响不明显:使用自制抗起毛起球整理剂A的最佳条件是整理剂用量4%、浸渍温度60℃、整理液pH值7、浴比l:20。在最佳条件下并选择浸渍时间60min、烘干温度90℃ 烘干时间1h对织物进行抗起毛起球整理,整理后织物的抗起毛起球等级可由原来的1~2提高至3~4.织物的柔软性有所改善,顶破强力和保暖性有所提高,但织物的透气性会略有降低。  相似文献   

3.
为探究涤纶仿真丝织物抗起毛起球性能,对具有代表性的26种涤纶仿真丝缎纹织物进行了测试,对比分析了不同种类纱线制成织物的抗起毛起球性能差异并研究了其起毛起球性能的影响因素。结果表明:涤纶仿真丝织物抗起毛起球等级均值为4级,最优为5级,最差为2~3级。纬丝添加氨纶后织物的抗起毛起球性能有下降的趋势,但影响较小。同种纱线下起毛起球等级与织物总紧度呈正相关关系,且采用FDY加捻纱线和具有较高紧度的织物抗起毛起球性能最优。  相似文献   

4.
采用正交分析法对影响精纺粗花呢抗起毛起球整理工艺因素进行了定量的分析.依据试验结果进行方差分析,讨论影响因素的显著性,提出精纺粗花呢抗起毛起球最佳整理工艺条件。整理后的织物抗起毛起球效果显著,同时呈现出良好手感和风格.  相似文献   

5.
本文首先对国内外涤纶纤维发展概况,江苏省差别化涤纶短纤维的现状进行介绍,并通过对精纺呢绒的服用性能之一──“起球”机理的分析,研究了低比例羊毛与抗起毛起球涤纶纤维混纺的可能,提出了70%抗起毛起球涤纶与30%羊毛纤维倒比例混纺的超级轧别丁总工艺设计,使产品具有45%羊毛与55%常规涤纶混纺织物的质地。  相似文献   

6.
影响织物起毛起球的因素很多,主要有纤维特性、纱线结构、织物参数、后整理工艺及穿着条件等。在众多的影响因素中,后整理工艺对织物抗起毛起球性的影响十分显著。文章对后整理工艺中的抗起毛起球剂浓度、柔软剂浓度、焙烘温度、焙烘时间4个因子进行了理论分析,提出了精纺粗花呢抗起毛起球的最佳整理工艺条件。选择最佳整理工艺条件,不但可以提高织物的抗起毛起球性能,同时也能改善织物的其它性能,这在实际工作中有着积极的意义。  相似文献   

7.
采用正交分析法对影响精纺粗花呢抗起毛起球整理工艺因素进行了定量的分析,并依据试验结果进行了方差分析,讨论了影响因素的显著性,提出了精纺粗花呢抗起毛起球最佳整理工艺条件。经整理后的织物,抗起毛起球效果显著,同时呈现出良好手感和风格。  相似文献   

8.
《印染》2017,(21)
用无甲醛树脂Arkofix NZF对莫代尔家纺面料进行抗起毛起球整理,探讨了整理剂和催化剂用量、p H值、焙烘温度和时间对整理织物抗起毛起球性能的影响。采用正交试验对整理工艺进行优化,得出莫代尔家纺面料抗起毛起球整理工艺为:无甲醛树脂Arkofix NZF 65 g/L,六水合氯化镁7 g/L,整理液p H值5,焙烘温度150℃,焙烘时间2 min。整理后织物的抗起毛起球等级达到4.5级。用艾叶提取液对莫代尔织物染色,可提高染色织物的抗起毛起球等级;再对染色织物进行抗起毛起球整理,其抗起毛起球性能和皂洗牢度进一步提高。  相似文献   

9.
织物抗起毛起球整理及抗起毛起球剂ATP的应用   总被引:10,自引:0,他引:10  
论及织物起毛起球的过程、影响因素、整理工艺及效果的评定、自制抗起毛起球剂ATP的应用结果表明:整理织物的抗起毛起球等级能提高1.5—2级,且耐久性良好。  相似文献   

10.
分述了涤纶针织品阻燃拒液、阻燃防紫外线、抗菌防臭、吸湿排汗和抗起毛起球整理的机理,简要介绍了其整理工艺.  相似文献   

11.
Since grapevine ( Vitis spp .) rootstock material is being traded increasingly as disbudded woody material a lack of distinctive morphological features on such material necessitates an alternative and reliable means of identification. Methods described here were developed for rapid and efficient extraction of DNA from woody samples rich in phenolic compounds and polysaccharides, and for subsequent identification of varieties by RAPD PCR. Using these methods, and with the application of only one selected RAPD primer, we were able to differentiate sixteen rootstock varieties, including the seven varieties most commonly used in Germany. Problems commonly encountered with reproducibility of RAPD patterns were avoided by choosing primers with a dinucleotide sequence and a high G/C content that allowed a rather high annealing temperature of 45°C. Methods described here should also be useful for other horticultural crops, especially those with woody tissues rich in phenolic compounds and polysaccharides.  相似文献   

12.
An internet website (http://cpf.jrc.it/smt/) has been produced as a means of dissemination of methods of analysis and supporting spectroscopic information on monomers and additives used for food contact materials (principally packaging). The site which is aimed primarily at assisting food control laboratories in the European Union contains analytical information on monomers, starting substances and additives used in the manufacture of plastics materials. A searchable index is provided giving PM and CAS numbers for each of 255 substances. For each substance a data sheet gives regulatory information, chemical structures, physico-chemical information and background information on the use of the substance in particular plastics, and the food packaging applications. For monomers and starting substances (155 compounds) the infra-red and mass spectra are provided, and for additives (100 compounds); additionally proton NMR are available for about 50% of the entries. Where analytical methods have been developed for determining these substances as residual amounts in plastics or as trace amounts in food simulants these methods are also on the website. All information is provided in portable document file (PDF) format which means that high quality copies can be readily printed, using freely available Adobe Acrobat Reader software. The website will in future be maintained and up-dated by the European Commission's Joint Research Centre (JRC) as new substances are authorized for use by the European Commission (DG-ENTR formerly DGIII). Where analytical laboratories (food control or other) require reference substances these can be obtained free-ofcharge from a reference collection housed at the JRC and maintained in conjunction with this website compendium.  相似文献   

13.
The characterization of the aromatic profile of several apricot cultivars with molecular tracers in order to obtain objective data concerning the aromatic quality of this fruit was undertaken using headspace–solid phase microextraction (HS–SPME). Six apricot cultivars were selected according to their organoleptic characteristics: Iranien, Orangered, Goldrich, Hargrand, Rouge du Roussillon and A4025. The aromatic intensity of these varieties measured by HS–SPME–Olfactometry were defined and classified according to the presence and the intensity of grassy, fruity and apricot like notes. In the six varieties, 23 common volatile compounds were identified by HS–SPME–GC–MS. Finally, 10 compounds, ethyl acetate, hexyl acetate, limonene, β-cyclocitral, γ-decalactone, 6-methyl-5-hepten-2-one, linalool, β-ionone, menthone and (E)-hexen-2-al were recognized by HS–SPME–GC–O as responsible of the aromatic notes involved in apricot aroma and considered as molecular tracers of apricot aromatic quality which could be utilized to discriminate apricot varieties.  相似文献   

14.
The advent of the functional barrier concept in food packaging has brought with it a requirement for fast tests of permeation through potential barrier materials. In such tests it would be convenient for both foodstuffs and materials below the functional barrier (sub-barrier materials) to be represented by standard simulants. By means of inverse gas chromatography, liquid paraffin spiked with appropriate permeants was considered as a potential simulant of sub-barrier materials based on polypropylene (PP) or similar polyolefins. Experiments were performed to characterize the kinetics of the permeation of low molecular weight model permeants (octene, toluene and isopropanol) from liquid paraffin, through a surrogate potential functional barrier (25 μm-thick oriented PP) into the food simulants olive oil and 3% (w/v) acetic acid. These permeation results were interpreted in terms of three permeation kinetic models regarding the solubility of a particular model permeant in the post-barrier medium (i.e. the food simulant). The results obtained justify the development and evaluation of liquid sub-barrier simulants that would allow flexible yet rigorous testing of new laminated multilayer packaging materials.  相似文献   

15.
BADGE.2HCl and BFDGE.2HCl were determined in 28 samples of ready-to-drink canned coffee and 18 samples of canned vegetables (10 corn, 5 tomatoes and 3 others), all from the Japanese market. HPLC was used as the principal analytical method and GCMS for confirmation of relevant LC fractions. BADGE.2HCl was found to be present in one canned coffee and five samples of corn, BFDGE.2HCl in four samples of canned tomatoes and in one canned corn. No sample was found which exceeded the 1mg/kg limit of the EU for the BADGE chlorohydrins. However the highest concentration was found for the sum of BFDGE.2HCl and BFDGE.HCl.H2O at a level of 1.5mg/kg. A Beilstein test confirmed that all cans containing foods contaminated with BADGE.2HCl or BFDGE.2HCl had at lest one part coated with a PVC organosol.  相似文献   

16.
17.
A strong science base is required to underpin the planning and decision-making process involved in determining future European community legislation on materials and articles in contact with food. Significant progress has been made in the past 5 years in European funded work in this area, with many developments contributing to a much better understanding of the migration process, and better and simpler approaches to food control. In this paper this progress is reviewed against previously identified work-areas (identified in 1994) and conclusions are reached about future requirements for R&D to support legislation on food contact materials and articles over the next 5 or so years.  相似文献   

18.
19.
This paper describes the second part of a project undertaken to develop certified mussel reference materials for paralytic shellfish poisoning toxins. In the first part two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin and decarbamoyl-saxitoxin in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the certification exercise. Fifteen laboratories participated in this certification study and were asked to measure saxitoxin and decarbamoyl-saxitoxin in rehydrated lyophilized mussel material and in a saxitoxin-enriched mussel material. The participants were allowed to use a method of their choice but with an extraction procedure to be strictly followed. The study included extra experiments to verify the detection limits for both saxitoxin and decarbamoyl-saxitoxin. Most participants (13 of 15) were able to meet all the criteria set for the certification study. Results for saxitoxin.2HCl yielded a certified mass fraction of <0.07 mg/kg in the rehydrated lyophilized mussels. Results obtained for decarbamoyl-saxitoxin.2HCl yielded a certified mass fraction of 1.59+/-0.20 mg/kg. The results for saxitoxin.2HCl in enriched blank mussel yielded a certified mass fraction of 0.48 +/- 0.06 mg/kg. These certified reference materials for paralytic shellfish poisoning toxins in lyophilized mussel material are the first available for laboratories to test their method for accuracy and performance.  相似文献   

20.
<正>We are pleased to announce the launch of a new international peer-reviewed journal-Food Science and Human Wellness,ISSN 2213-4530,which is an open access journal,produced and hosted by Elsevier B.V.on behalf of Beijing Academy of Food Sciences.Food Science and Human Wellness is an international peer-reviewed English journal that provides a forum for the dissemination of the  相似文献   

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